1 files changed, 108 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Mailcap.pm b/lib/Lintian/Check/Mailcap.pm
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+++ b/lib/Lintian/Check/Mailcap.pm
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+# mailcap -- lintian check script -*- perl -*-
+
+# Copyright (C) 2019 Felix Lechner
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, you can find it on the World Wide
+# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+package Lintian::Check::Mailcap;
+
+use v5.20;
+use warnings;
+use utf8;
+use autodie qw(open);
+
+use Const::Fast;
+use List::SomeUtils qw(uniq);
+use Text::Balanced qw(extract_delimited extract_multiple);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+const my $EMPTY => q{};
+
+sub visit_installed_files {
+    my ($self, $item) = @_;
+
+    return
+      unless $item->name =~ m{^usr/lib/mime/packages/};
+
+    return
+      unless $item->is_file && $item->is_open_ok;
+
+    open(my $fd, '<', $item->unpacked_path);
+
+    my @continuation;
+
+    my $position = 1;
+    while (my $line = <$fd>) {
+
+        unless (@continuation) {
+            # skip blank lines
+            next
+              if $line =~ /^\s*$/;
+
+            # skip comments
+            next
+              if $line =~ /^\s*#/;
+        }
+
+        # continuation line
+        if ($line =~ s/\\$//) {
+            push(@continuation, {string => $line, position => $position});
+            next;
+        }
+
+        push(@continuation, {string => $line, position => $position});
+
+        my $assembled = $EMPTY;
+        $assembled .= $_->{string} for @continuation;
+
+        my $start_position = $continuation[0]->{position};
+
+        my @quoted
+          = extract_multiple($assembled,
+            [sub { extract_delimited($_[0], q{"'}, '[^\'"]*') }],
+            undef, 1);
+
+        my @placeholders = uniq grep { /\%s/ } @quoted;
+
+        $self->pointed_hint(
+            'quoted-placeholder-in-mailcap-entry',
+            $item->pointer($start_position),
+            @placeholders
+        )if @placeholders;
+
+        @continuation = ();
+
+    } continue {
+        ++$position;
+    }
+
+    close $fd;
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et